The dataset contains more than 4,536 2D shapes included
in standard as well as in home-build datasets.
Our goal is to represent a given 2D shape with an automatically determined number of ellipses, so that the total area covered by the ellipses is equal to the area of the original shape without any assumption or prior knowledge about the object structure[1]. The 4,526 2D shapes are organized in 6 datasets [1].